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Homework Help: Pressure in side a bag, that has been microwaved: Problem 12.19

  1. Jan 5, 2009 #1
    1. The problem statement, all variables and given/known data

    16g of liquid water is placed in a flexible bag, the air is excluded, and the bag is sealed. It is then placed in a microwave oven where the water is boiled to make steam at 100 deg Cel. What is the volume of the bag after all the water has boiled? Assume that the pressure inside the bag is equal to atmospheric pressure.

    2. Relevant equations

    I don't know...

    3. The attempt at a solution

    These are the solutions i got, but i dont remember how, i did this problem before i left for break, and now im back, a month later:

    0.016, 0.0013, 16
  2. jcsd
  3. Jan 5, 2009 #2


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    Science Advisor
    Homework Helper

    Do you know about moles (not the furry kind) ?

    How many moles of water in 16g?
    Then use PV = nRT to get the volume of the gas.
  4. Jan 6, 2009 #3
    thanks man, i actually understood that
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